The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-162-7499, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-162-7499 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 16Y223-801 | 5/2 Secondary reference U.S. Government activity |
| 16Y223-803 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-162-7499 is a Duct Assembly,air Conditioning-H, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-162-7499: Special Features: C/O-COUPLING-5,TUBE-3,DUCT-2;MATERIAL OF TUBES AND DUCTS PER MIL-T-8808,TYPE II;STOCK SIZE OF DUCTS-20 IN. DIA. X .02 THK WALL;SIZE OF -19 TUBE-1/2INCH OUT DIA X .020 INCH THK WALL,OF -31 TUBE- 1 INCH OUT DIA X .020 INCH THK WALL;PRESSURE TESTED TO 126 PSIG AT ROOM TEMP AND 113 PSIG AT 300 DEG. FAHRENHEIT;FUNCTION-DUCT,OUTLET-PRIMARY HEAT EXCHANGER;EFF ON-5C 0001 9999;NHA-16Y020-803 IN; End Item Identification: F-16C/D AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1660-01-162-7499 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.